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/*
* Message Queue Manager
*
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems/system.h>
#include <rtems/score/sysstate.h>
#include <rtems/score/chain.h>
#include <rtems/score/isr.h>
#include <rtems/score/coremsg.h>
#include <rtems/score/object.h>
#include <rtems/score/states.h>
#include <rtems/score/thread.h>
#include <rtems/score/wkspace.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/mpci.h>
#endif
#include <rtems/rtems/status.h>
#include <rtems/rtems/attr.h>
#include <rtems/rtems/message.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/support.h>
/*PAGE
*
* rtems_message_queue_broadcast
*
* This directive sends a message for every thread waiting on the queue
* designated by id.
*
* Input parameters:
* id - pointer to message queue
* buffer - pointer to message buffer
* size - size of message to broadcast
* count - pointer to area to store number of threads made ready
*
* Output parameters:
* count - number of threads made ready
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_message_queue_broadcast(
Objects_Id id,
void *buffer,
unsigned32 size,
unsigned32 *count
)
{
register Message_queue_Control *the_message_queue;
Objects_Locations location;
CORE_message_queue_Status core_status;
the_message_queue = _Message_queue_Get( id, &location );
switch ( location ) {
case OBJECTS_REMOTE:
#if defined(RTEMS_MULTIPROCESSING)
_Thread_Executing->Wait.return_argument = count;
return
_Message_queue_MP_Send_request_packet(
MESSAGE_QUEUE_MP_BROADCAST_REQUEST,
id,
buffer,
&size,
0, /* option_set not used */
MPCI_DEFAULT_TIMEOUT
);
#endif
case OBJECTS_ERROR:
return RTEMS_INVALID_ID;
case OBJECTS_LOCAL:
core_status = _CORE_message_queue_Broadcast(
&the_message_queue->message_queue,
buffer,
size,
id,
#if defined(RTEMS_MULTIPROCESSING)
_Message_queue_Core_message_queue_mp_support,
#else
NULL,
#endif
count
);
_Thread_Enable_dispatch();
return
_Message_queue_Translate_core_message_queue_return_code( core_status );
}
return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
}
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